Funding for this research was provided by:
National Institute on Disability, Independent Living, and Rehabilitation Research (HHS90RT5009, H113P120001)
National Center for Medical Rehabilitation Research (5R24HD065688-05)
Received: 1 May 2017
Accepted: 14 January 2018
First Online: 23 January 2018
Ethics approval and consent to participate
: Boston University’s Institutional Review Board approved this study. Informed written consent was obtained from all study participants.
: Not applicable
: The authors declare that they have no competing interests.
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